<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * handles miscellaneous db operations:
 *  - move/rename
 *  - copy
 *  - changing collation
 *  - changing comment
 *  - adding tables
 *  - viewing PDF schemas
 *
 * @version $Id: db_operations.php 11195 2008-04-14 14:32:06Z lem9 $
 */

/**
 * requirements
 */
require_once './libraries/common.inc.php';
require_once './libraries/Table.class.php';
require_once './libraries/mysql_charsets.lib.php';

/**
 * Rename/move or copy database
 */
if (strlen($db) &&
	((isset($db_rename) && $db_rename == 'true') ||
	(isset($db_copy) && $db_copy == 'true'))) {

	if (isset($db_rename) && $db_rename == 'true') {
		$move = true;
	} else {
		$move = false;
	}

	if (!isset($newname) || !strlen($newname)) {
		$message = $strDatabaseEmpty;
	} else {
		$sql_query = ''; // in case target db exists
		if ($move ||
		   (isset($create_database_before_copying) && $create_database_before_copying)) {
			// lower_case_table_names=1 `DB` becomes `db`
			$lower_case_table_names = PMA_DBI_fetch_value('SHOW VARIABLES LIKE "lower_case_table_names"', 0, 1);
			if ($lower_case_table_names === '1') {
				$newname = strtolower($newname);
			}
			
			$local_query = 'CREATE DATABASE ' . PMA_backquote($newname);
			if (isset($db_collation)) {
				$local_query .= ' DEFAULT' . PMA_generateCharsetQueryPart($db_collation);
			}
			$local_query .= ';';
			$sql_query = $local_query;
			PMA_DBI_query($local_query);
			// rebuild the database list because PMA_Table::moveCopy
			// checks in this list if the target db exists
			$GLOBALS['PMA_List_Database']->build();
		}

		if (isset($GLOBALS['add_constraints'])) {
			$GLOBALS['sql_constraints_query_full_db'] = '';
		}

		$tables_full = PMA_DBI_get_tables_full($db);
		$views = array();
		foreach ($tables_full as $each_table => $tmp) {
			// to be able to rename a db containing views, we
			// first collect in $views all the views we find and we
			// will handle them after the tables
			/**
			 * @todo support a view of a view
			 * @todo support triggers 
			 */
			if (PMA_Table::isView($db, $each_table)) {
				$views[] = $each_table;
				continue;
			}

			$back = $sql_query;
			$sql_query = '';

			// value of $what for this table only
			$this_what = $what;

			if (!isset($tables_full[$each_table]['Engine'])) {
				$tables_full[$each_table]['Engine'] = $tables_full[$each_table]['Type'];
			}
			// do not copy the data from a Merge table
			// note: on the calling FORM, 'data' means 'structure and data'
			if ($tables_full[$each_table]['Engine'] == 'MRG_MyISAM') {
				if ($this_what == 'data') {
					$this_what = 'structure';
				}
				if ($this_what == 'dataonly') {
					$this_what = 'nocopy';
				}
			}

			if ($this_what != 'nocopy') {
				PMA_Table::moveCopy($db, $each_table, $newname, $each_table,
					isset($this_what) ? $this_what : 'data', $move, 'db_copy');
				if (isset($GLOBALS['add_constraints'])) {
					$GLOBALS['sql_constraints_query_full_db'] .= $GLOBALS['sql_constraints_query'];
					unset($GLOBALS['sql_constraints_query']);
				}
			}

			$sql_query = $back . $sql_query;
		} // end (foreach)
		unset($each_table);

		// handle the views
		foreach ($views as $view) {
			PMA_Table::moveCopy($db, $view, $newname, $view,
				'structure', $move, 'db_copy');
		}
		unset($view, $views);

		// now that all tables exist, create all the accumulated constraints
		if (isset($GLOBALS['add_constraints'])) {
			/**
			 * @todo this works with mysqli but not with mysql, because
			 * mysql extension does not accept more than one statement; maybe
			 * interface with the sql import plugin that handles statement delimiter
			 */
			PMA_DBI_query($GLOBALS['sql_constraints_query_full_db']);

			// and prepare to display them
			$GLOBALS['sql_query'] .= "\n" . $GLOBALS['sql_constraints_query_full_db'];
			unset($GLOBALS['sql_constraints_query_full_db']);
		}

		if (PMA_MYSQL_INT_VERSION >= 50000) {
			// here I don't use DELIMITER because it's not part of the
			// language; I have to send each statement one by one

			// to avoid selecting alternatively the current and new db
			// we would need to modify the CREATE definitions to qualify
			// the db name
			$procedure_names = PMA_DBI_get_procedures_or_functions($db, 'PROCEDURE');
			if ($procedure_names) {
				foreach($procedure_names as $procedure_name) {
					PMA_DBI_select_db($db);
					$tmp_query = PMA_DBI_get_procedure_or_function_def($db, 'PROCEDURE', $procedure_name);
					// collect for later display
					$GLOBALS['sql_query'] .= "\n" . $tmp_query;
					PMA_DBI_select_db($newname);
					PMA_DBI_query($tmp_query);
				}
			}

			$function_names = PMA_DBI_get_procedures_or_functions($db, 'FUNCTION');
			if ($function_names) {
				foreach($function_names as $function_name) {
					PMA_DBI_select_db($db);
					$tmp_query = PMA_DBI_get_procedure_or_function_def($db, 'FUNCTION', $function_name);
					// collect for later display
					$GLOBALS['sql_query'] .= "\n" . $tmp_query;
					PMA_DBI_select_db($newname);
					PMA_DBI_query($tmp_query);
				}
			}
		}
		// go back to current db, just in case
		PMA_DBI_select_db($db);

		// Duplicate the bookmarks for this db (done once for each db)
		if ($db != $newname) {
			$get_fields = array('user', 'label', 'query');
			$where_fields = array('dbase' => $db);
			$new_fields = array('dbase' => $newname);
			PMA_Table::duplicateInfo('bookmarkwork', 'bookmark', $get_fields,
				$where_fields, $new_fields);
		}

		if ($move) {
			// cleanup pmadb stuff for this db
			require_once './libraries/relation_cleanup.lib.php';
			PMA_relationsCleanupDatabase($db);

			// if someday the RENAME DATABASE reappears, do not DROP
			$local_query = 'DROP DATABASE ' . PMA_backquote($db) . ';';
			$sql_query .= "\n" . $local_query;
			PMA_DBI_query($local_query);

			$message	= sprintf($strRenameDatabaseOK, htmlspecialchars($db),
				htmlspecialchars($newname));
		} else {
			$message	= sprintf($strCopyDatabaseOK, htmlspecialchars($db),
				htmlspecialchars($newname));
		}
		$reload	 = true;

		/* Change database to be used */
		if ($move) {
			$db		 = $newname;
		} else {
			if (isset($switch_to_new) && $switch_to_new == 'true') {
				PMA_setCookie('pma_switch_to_new', 'true');
				$db		 = $newname;
			} else {
				PMA_setCookie('pma_switch_to_new', '');
			}
		}
	}
}
/**
 * Settings for relations stuff
 */

require_once './libraries/relation.lib.php';
$cfgRelation = PMA_getRelationsParam();

/**
 * Check if comments were updated
 * (must be done before displaying the menu tabs)
 */
if ($cfgRelation['commwork'] && isset($db_comment) && $db_comment == 'true') {
	PMA_SetComment($db, '', '(db_comment)', $comment);
}

/**
 * Prepares the tables list if the user where not redirected to this script
 * because there is no table in the database ($is_info is true)
 */
if (empty($is_info)) {
	require './libraries/db_common.inc.php';
	$url_query .= '&amp;goto=db_operations.php';

	// Gets the database structure
	$sub_part = '_structure';
	require './libraries/db_info.inc.php';
	echo "\n";
}

if (PMA_MYSQL_INT_VERSION >= 40101) {
	$db_collation = PMA_getDbCollation($db);
}
if (PMA_MYSQL_INT_VERSION < 50002
  || (PMA_MYSQL_INT_VERSION >= 50002 && $db != 'information_schema')) {
	$is_information_schema = false;
} else {
	$is_information_schema = true;
}

if (!$is_information_schema) {

	require './libraries/display_create_table.lib.php';

	if ($cfgRelation['commwork']) {
		/**
		 * database comment
		 */
		?>
	<form method="post" action="db_operations.php">
	<?php echo PMA_generate_common_hidden_inputs($db); ?>
	<input type="hidden" name="db_comment" value="true" />
	<fieldset>
		<legend>
		<?php
		if ($cfg['PropertiesIconic']) {
			echo '<img class="icon" src="' . $pmaThemeImage . 'b_comment.png"'
				.' alt="" border="0" width="16" height="16" hspace="2" align="middle" />';
		}
		echo $strDBComment;
		$comment = PMA_getComments($db);
		?>
		</legend>
		<input type="text" name="comment" class="textfield" size="30"
			value="<?php
			echo (isset($comment) && is_array($comment)
				? htmlspecialchars(implode(' ', $comment))
				: ''); ?>" />
		<input type="submit" value="<?php echo $strGo; ?>" />
	</fieldset>
	</form>
		<?php
	}
	/**
	 * rename database
	 */
	?>
	<form method="post" action="db_operations.php"
		onsubmit="return emptyFormElements(this, 'newname')">
		<?php
	if (isset($db_collation)) {
		echo '<input type="hidden" name="db_collation" value="' . $db_collation
			 .'" />' . "\n";
	}
		 ?>
	<input type="hidden" name="what" value="data" />
	<input type="hidden" name="db_rename" value="true" />
	<?php echo PMA_generate_common_hidden_inputs($db); ?>
	<fieldset>
		<legend>
	<?php
	if ($cfg['PropertiesIconic']) {
		echo '<img class="icon" src="' . $pmaThemeImage . 'b_edit.png"'
			.' alt="" width="16" height="16" />';
	}
	echo $strDBRename . ':';
	?>
		</legend>
		<input type="text" name="newname" size="30" class="textfield" value="" />
		<?php
	echo '(' . $strCommand . ': ';
	/**
	 * @todo (see explanations above in a previous todo) 
	 */
	//if (PMA_MYSQL_INT_VERSION >= XYYZZ) {
	//	echo 'RENAME DATABASE';
	//} else {
		echo 'INSERT INTO ... SELECT';
	//}
	echo ')'; ?>
		<input type="submit" value="<?php echo $strGo; ?>" onclick="return confirmLink(this, 'CREATE DATABASE ... <?php echo $strAndThen; ?> DROP DATABASE <?php echo PMA_jsFormat($db); ?>')" />
	</fieldset>
	</form>

	<?php
	/**
	 * Copy database
	 */
	?>
	<form method="post" action="db_operations.php"
		onsubmit="return emptyFormElements(this, 'newname')">
	<?php
	if (isset($db_collation)) {
		echo '<input type="hidden" name="db_collation" value="' . $db_collation
			.'" />' . "\n";
	}
	echo '<input type="hidden" name="db_copy" value="true" />' . "\n";
	echo PMA_generate_common_hidden_inputs($db);
	?>
	<fieldset>
		<legend>
	<?php
	if ($cfg['PropertiesIconic']) {
		echo '<img class="icon" src="' . $pmaThemeImage . 'b_edit.png"'
			.' alt="" width="16" height="16" />';
	}
	echo $strDBCopy . ':';
	if (PMA_MYSQL_INT_VERSION >= 50000) {
		$drop_clause = 'DROP TABLE / DROP VIEW';
	} else {
		$drop_clause = 'DROP TABLE';
	}
	?>
		</legend>
		<input type="text" name="newname" size="30" class="textfield" value="" /><br />
		<input type="radio" name="what" value="structure"
			id="radio_copy_structure" style="vertical-align: middle" />
		<label for="radio_copy_structure"><?php echo $strStrucOnly; ?></label><br />
		<input type="radio" name="what" value="data" id="radio_copy_data"
			checked="checked" style="vertical-align: middle" />
		<label for="radio_copy_data"><?php echo $strStrucData; ?></label><br />
		<input type="radio" name="what" value="dataonly"
			id="radio_copy_dataonly" style="vertical-align: middle" />
		<label for="radio_copy_dataonly"><?php echo $strDataOnly; ?></label><br />

		<input type="checkbox" name="create_database_before_copying" value="1"
			id="checkbox_create_database_before_copying"
			style="vertical-align: middle" checked="checked" />
		<label for="checkbox_create_database_before_copying">
			<?php echo $strCreateDatabaseBeforeCopying; ?></label><br />
		<input type="checkbox" name="drop_if_exists" value="true"
			id="checkbox_drop" style="vertical-align: middle" />
		<label for="checkbox_drop"><?php echo sprintf($strAddClause, $drop_clause); ?></label><br />
		<input type="checkbox" name="sql_auto_increment" value="1"
			id="checkbox_auto_increment" style="vertical-align: middle" />
		<label for="checkbox_auto_increment">
			<?php echo $strAddAutoIncrement; ?></label><br />
		<input type="checkbox" name="add_constraints" value="1"
			id="checkbox_constraints" style="vertical-align: middle" />
		<label for="checkbox_constraints">
			<?php echo $strAddConstraints; ?></label><br />
	<?php
	unset($drop_clause);

	if (isset($_COOKIE) && isset($_COOKIE['pma_switch_to_new'])
	  && $_COOKIE['pma_switch_to_new'] == 'true') {
		$pma_switch_to_new = 'true';
	}
	?>
		<input type="checkbox" name="switch_to_new" value="true"
			id="checkbox_switch"
			<?php echo ((isset($pma_switch_to_new) && $pma_switch_to_new == 'true') ? ' checked="checked"' : ''); ?>
			style="vertical-align: middle" />
		<label for="checkbox_switch"><?php echo $strSwitchToDatabase; ?></label>
	</fieldset>
	<fieldset class="tblFooters">
		<input type="submit" name="submit_copy" value="<?php echo $strGo; ?>" />
	</fieldset>
	</form>

	<?php
	/**
	 * Change database charset
	 */
	if (PMA_MYSQL_INT_VERSION >= 40101) {
	// MySQL supports setting default charsets / collations for databases since
	// version 4.1.1.
		echo '<form method="post" action="./db_operations.php">' . "\n"
		   . PMA_generate_common_hidden_inputs($db, $table)
		   . '<fieldset>' . "\n"
		   . '	<legend>';
		if ($cfg['PropertiesIconic']) {
			echo '<img class="icon" src="' . $pmaThemeImage . 's_asci.png"'
				.' alt="" width="16" height="16" />';
		}
		echo '	<label for="select_db_collation">' . $strCollation . ':</label>' . "\n"
		   . '	</legend>' . "\n"
		   . PMA_generateCharsetDropdownBox(PMA_CSDROPDOWN_COLLATION,
				'db_collation', 'select_db_collation', $db_collation, false, 3)
		   . '	<input type="submit" name="submitcollation"'
		   . ' value="' . $strGo . '" style="vertical-align: middle" />' . "\n"
		   . '</fieldset>' . "\n"
		   . '</form>' . "\n";
	}

	if ($num_tables > 0
	  && !$cfgRelation['allworks'] && $cfg['PmaNoRelation_DisableWarning'] == false) {
		/* Show error if user has configured something, notice elsewhere */
		if (!empty($cfg['Servers'][$server]['pmadb'])) {
			echo '<div class="error"><h1>' . $strError . '</h1>';
		} else {
			echo '<div class="notice">';
		}
		printf($strRelationNotWorking, '<a href="' . $cfg['PmaAbsoluteUri'] . 'chk_rel.php?' . $url_query . '">', '</a>');
		echo '</div>';
	} // end if
} // end if (!$is_information_schema)


// not sure about displaying the PDF dialog in case db is information_schema
if ($cfgRelation['pdfwork'] && $num_tables > 0) { ?>
	<!-- Work on PDF Pages -->

	<?php
	// We only show this if we find something in the new pdf_pages table

	$test_query = '
		 SELECT *
		   FROM ' . PMA_backquote($GLOBALS['cfgRelation']['db']) . '.' . PMA_backquote($cfgRelation['pdf_pages']) . '
		  WHERE db_name = \'' . PMA_sqlAddslashes($db) . '\'';
	$test_rs	= PMA_query_as_cu($test_query, null, PMA_DBI_QUERY_STORE);

	if ($test_rs && PMA_DBI_num_rows($test_rs) > 0) { ?>
	<!-- PDF schema -->
	<form method="post" action="pdf_schema.php">
	<fieldset>
		<legend>
		<?php
		echo PMA_generate_common_hidden_inputs($db);
		if ($cfg['PropertiesIconic']) {
			echo '<img class="icon" src="' . $pmaThemeImage . 'b_view.png"'
				.' alt="" width="16" height="16" />';
		}
		echo $strDisplayPDF;
		?>:
		</legend>
		<label for="pdf_page_number_opt"><?php echo $strPageNumber; ?></label>
		<select name="pdf_page_number" id="pdf_page_number_opt">
		<?php
		while ($pages = @PMA_DBI_fetch_assoc($test_rs)) {
			echo '				<option value="' . $pages['page_nr'] . '">'
				. $pages['page_nr'] . ': ' . $pages['page_descr'] . '</option>' . "\n";
		} // end while
		PMA_DBI_free_result($test_rs);
		unset($test_rs);
		?>
		</select><br />

		<input type="checkbox" name="show_grid" id="show_grid_opt" />
		<label for="show_grid_opt"><?php echo $strShowGrid; ?></label><br />
		<input type="checkbox" name="show_color" id="show_color_opt"
			checked="checked" />
		<label for="show_color_opt"><?php echo $strShowColor; ?></label><br />
		<input type="checkbox" name="show_table_dimension" id="show_table_dim_opt" />
		<label for="show_table_dim_opt"><?php echo $strShowTableDimension; ?>
			</label><br />
		<input type="checkbox" name="all_tab_same_wide" id="all_tab_same_wide" />
		<label for="all_tab_same_wide"><?php echo $strAllTableSameWidth; ?>
			</label><br />
		<input type="checkbox" name="with_doc" id="with_doc" checked="checked" />
		<label for="with_doc"><?php echo $strDataDict; ?></label><br />

		<label for="orientation_opt"><?php echo $strShowDatadictAs; ?></label>
		<select name="orientation" id="orientation_opt">
			<option value="L"><?php echo $strLandscape;?></option>
			<option value="P"><?php echo $strPortrait;?></option>
		</select><br />

		<label for="paper_opt"><?php echo $strPaperSize; ?></label>
		<select name="paper" id="paper_opt">
		<?php
			foreach ($cfg['PDFPageSizes'] AS $key => $val) {
				echo '<option value="' . $val . '"';
				if ($val == $cfg['PDFDefaultPageSize']) {
					echo ' selected="selected"';
				}
				echo ' >' . $val . '</option>' . "\n";
			}
		?>
		</select>
	</fieldset>
	<fieldset class="tblFooters">
		<input type="submit" value="<?php echo $strGo; ?>" />
	</fieldset>
	</form>
		<?php
	}   // end if
	echo '<br /><a href="pdf_pages.php?' . $url_query . '">';
	if ($cfg['PropertiesIconic']) {
		echo '<img class="icon" src="' . $pmaThemeImage . 'b_edit.png"'
			.' alt="" width="16" height="16" />';
	}
	echo $strEditPDFPages . '</a>';
} // end if

/**
 * Displays the footer
 */
require_once './libraries/footer.inc.php';
?>
